题库搜索>问题求解PS-12985
A company has assigned a distinct 3-digit code number to each of its 330 employees. Each code number was formed from the digits 2, 3, 4, 5, 6, 7, 8, 9 and no digit appears more than once in any one code number. How many unassigned code numbers are there?
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暂无雷哥网文字解析
2 3 4 5 6 7 8 9这8个数字，组成无重复数字的3位数 ,总共有8*7*6=336
员工有330人336-330=6个是用不上的
发愤图强
妈呀，我说怎么都没有336
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2019-01-28 22:43:59
草民不敢
认真读题是王道啊
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2016-06-26 22:19:47
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